cve-2024-56750
Vulnerability from cvelistv5
Published
2024-12-29 11:30
Modified
2025-01-20 06:27
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: erofs: fix blksize < PAGE_SIZE for file-backed mounts Adjust sb->s_blocksize{,_bits} directly for file-backed mounts when the fs block size is smaller than PAGE_SIZE. Previously, EROFS used sb_set_blocksize(), which caused a panic if bdev-backed mounts is not used.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/679d8537e5748241c71ac97a6b6dc919eae31716Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bae0854160939a64a092516ff1b2f221402b843bPatch
Impacted products
Vendor Product Version
Linux Linux Version: fb176750266a3d7f42ebdcf28e8ba40350b27847
Version: fb176750266a3d7f42ebdcf28e8ba40350b27847
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   Linux Linux Version: 6.12
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/erofs/super.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "679d8537e5748241c71ac97a6b6dc919eae31716",
              "status": "affected",
              "version": "fb176750266a3d7f42ebdcf28e8ba40350b27847",
              "versionType": "git"
            },
            {
              "lessThan": "bae0854160939a64a092516ff1b2f221402b843b",
              "status": "affected",
              "version": "fb176750266a3d7f42ebdcf28e8ba40350b27847",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/erofs/super.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.12"
            },
            {
              "lessThan": "6.12",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.13",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nerofs: fix blksize \u003c PAGE_SIZE for file-backed mounts\n\nAdjust sb-\u003es_blocksize{,_bits} directly for file-backed\nmounts when the fs block size is smaller than PAGE_SIZE.\n\nPreviously, EROFS used sb_set_blocksize(), which caused\na panic if bdev-backed mounts is not used."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-01-20T06:27:22.259Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/679d8537e5748241c71ac97a6b6dc919eae31716"
        },
        {
          "url": "https://git.kernel.org/stable/c/bae0854160939a64a092516ff1b2f221402b843b"
        }
      ],
      "title": "erofs: fix blksize \u003c PAGE_SIZE for file-backed mounts",
      "x_generator": {
        "engine": "bippy-5f407fcff5a0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-56750",
    "datePublished": "2024-12-29T11:30:16.053Z",
    "dateReserved": "2024-12-29T11:26:39.759Z",
    "dateUpdated": "2025-01-20T06:27:22.259Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-56750\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-12-29T12:15:08.517\",\"lastModified\":\"2025-01-06T17:04:58.267\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nerofs: fix blksize \u003c PAGE_SIZE for file-backed mounts\\n\\nAdjust sb-\u003es_blocksize{,_bits} directly for file-backed\\nmounts when the fs block size is smaller than PAGE_SIZE.\\n\\nPreviously, EROFS used sb_set_blocksize(), which caused\\na panic if bdev-backed mounts is not used.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: erofs: corrige blksize \u0026lt; PAGE_SIZE para montajes respaldados por archivos Ajuste sb-\u0026gt;s_blocksize{,_bits} directamente para montajes respaldados por archivos cuando el tama\u00f1o de bloque fs es menor que PAGE_SIZE. Anteriormente, EROFS usaba sb_set_blocksize(), que causaba un p\u00e1nico si no se usaban montajes respaldados por bdev.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.12\",\"versionEndExcluding\":\"6.12.2\",\"matchCriteriaId\":\"D8882B1B-2ABC-4838-AC1D-DBDBB5764776\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/679d8537e5748241c71ac97a6b6dc919eae31716\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/bae0854160939a64a092516ff1b2f221402b843b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
  }
}


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